Sacituzumab tirumotecan plus pembrolizumab versus pembrolizumab alone for pMMR endometrial cancer
Official title: A Phase 3 Randomized, Open-label, Multicenter Study to Compare the Efficacy and Safety of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in Combination With Pembrolizumab Versus Pembrolizumab Alone as First-line Maintenance Treatment in Participants With Mismatch Repair Proficient Endometrial Cancer (TroFuse-033/GOG-3119/ENGOT-en29)
Run by Merck Sharp & Dohme LLC · NCT06952504 · Data updated 2026-11-12
This trial tests whether adding sacituzumab tirumotecan to pembrolizumab helps people with advanced or recurrent mismatch repair–proficient endometrial cancer live longer without their cancer getting worse compared to pembrolizumab alone.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 1123 (estimated) |
| Sponsor | Merck Sharp & Dohme LLC Industry-sponsored |
| Drugs / interventions | chemotherapy, radiation, Sacituzumab, pembrolizumab |
| Locations | 271 sites (Mobile, Alabama and 270 other locations) |
| Status | Recruiting |
| Started | May 22, 2025 |
| Main results expected | May 24, 2032 |
| Study ends | May 24, 2032 |
| Registry record updated | November 10, 2026 |
| Trial ID | NCT06952504 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults with histologically confirmed advanced or recurrent endometrial carcinoma that is mismatch repair–proficient, with radiographically evaluable disease and limited or no prior systemic therapy as allowed by the protocol.
✕Probably not a fit
Patients with mismatch repair–deficient disease, those unable to receive platinum chemotherapy or PD-1 blockade, or those who do not meet the trial's prior-therapy criteria are unlikely to be eligible or benefit from this specific trial.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
All participants receive an initial induction phase of six three-week cycles of pembrolizumab combined with carboplatin plus paclitaxel or docetaxel. Participants whose disease does not progress after induction enter a maintenance phase and are randomly assigned to pembrolizumab with sacituzumab tirumotecan or pembrolizumab alone. Participants whose disease progresses may enter a subsequent treatment phase and be randomized to pembrolizumab plus sacituzumab tirumotecan or sacituzumab tirumotecan alone. The main goal is to compare length of time without disease progression and overall survival between the randomized groups.
Why it matters
Potential benefit: If successful, the combination could extend the time patients live without progression and possibly improve overall survival by delivering targeted chemotherapy alongside immune therapy.
How similar studies have gone: Combining antibody–drug conjugates with PD-1 inhibitors has shown promising early-phase signals in other tumor types, but this specific sacituzumab tirumotecan plus pembrolizumab approach in pMMR endometrial cancer is largely untested in late-phase trials.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key inclusion criteria include but are not limited to: * Has a histologically confirmed diagnosis of primary advanced or recurrent endometrial carcinoma that has been confirmed as proficient mismatch repair (pMMR) * Has radiographically evaluable disease, with measurable Stage III or either measurable or non-measurable Stage IV or recurrent disease per Response Evaluation Criteria In Solid Tumors version 1.1 (RECIST 1.1), as assessed by the investigator * Has received no prior systemic therapy for endometrial carcinoma except the following conditions as pre-specified by the protocol: 1 prior line of systemic platinum-based adjuvant and/or neoadjuvant chemotherapy in the setting of curative-intent, prior radiation with or without radiosensitizing chemotherapy if \>2 weeks before the start of induction treatment, or prior hormonal therapy for treatment of endometrial carcinoma that was discontinued ≥1 week before the start of induction treatment Key exclusion criteria include but are not limited to: * Has carcinosarcoma, neuroendocrine tumors or endometrial sarcoma, including stromal sarcoma, leiomyosarcoma, adenosarcoma, or other types of sarcomas * Has endometrial carcinoma of any histology that is mismatch repair deficient (dMMR) * Is a candidate for debulking surgery resulting in complete removal of all tumor and no evidence of radiological disease following surgery, or curative-intent radiotherapy at the time of enrollment * Has a history of documented severe dry eye syndrome, severe Meibomian gland disease and/or blepharitis, or severe corneal disease that prevents/delays corneal healing * Has active inflammatory bowel disease requiring immunosuppressive medication or previous history of inflammatory bowel disease * Has uncontrolled, significant cardiovascular disease or cerebrovascular disease * Human Immunodeficiency Virus-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease * Received prior therapy in any setting with any of the following: anti-programmed cell death 1 protein, anti-programmed cell death ligand 1, anti-programmed cell death ligand 2 agent, or with an agent directed to another stimulatory or coinhibitory T-cell receptor; trophoblast cell surface antigen 2-targeted antibody drug conjugate; or topoisomerase I inhibitor-containing antibody drug conjugate
Where it's running
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University of South Alabama, Mitchell Cancer Institute ( Site 6033)
Mobile, Alabama, United States Recruiting -
Alaska Women's Cancer Care ( Site 6036)
Anchorage, Alaska, United States Recruiting -
CHAO Family Comprehensive Cancer Center and Ambulatory Care ( Site 5014)
Irvine, California, United States Recruiting -
University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 6020)
Orange, California, United States Recruiting -
Sansum Clinic (Ridley Tree) ( Site 8007)
Solvang, California, United States Recruiting -
John Muir Health Cancer Center ( Site 6028)
Walnut Creek, California, United States Recruiting
Show 44 more locations
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Yale University School of Medicine ( Site 6009)
New Haven, Connecticut, United States Recruiting -
MedStar Washington Hospital Center ( Site 5005)
Washington D.C., District of Columbia, United States Recruiting -
Florida Cancer Specialists - South ( Site 7003)
Fort Myers, Florida, United States Recruiting -
UF Health Davis Cancer Pavilion and Shands Med Plaza ( Site 6026)
Gainesville, Florida, United States Recruiting -
Mount Sinai Braman Comprehensive Cancer Center ( Site 6031)
Miami Beach, Florida, United States Recruiting -
AdventHealth Orlando-AdventHealth Medical Group Gynecological Oncology ( Site 6002)
Orlando, Florida, United States Recruiting -
Florida Cancer Specialists ( Site 7002)
St. Petersburg, Florida, United States Recruiting -
Florida Cancer Specialists East ( Site 7001)
West Palm Beach, Florida, United States Recruiting -
St. Joseph's/Candler Health System ( Site 6021)
Savannah, Georgia, United States Recruiting -
University of Chicago Medical Center ( Site 5002)
Chicago, Illinois, United States Recruiting -
Parkview Research Center ( Site 6008)
Fort Wayne, Indiana, United States Recruiting -
Women's Cancer Care ( Site 6010)
Covington, Louisiana, United States Recruiting -
TRIALS 365 ( Site 6005)
Shreveport, Louisiana, United States Recruiting -
Maine Medical Center - Scarborough Campus ( Site 6042)
Scarborough, Maine, United States Recruiting -
Tufts Medical Center ( Site 6052)
Boston, Massachusetts, United States Recruiting -
Minnesota Oncology Hematology, PA ( Site 8003)
Minneapolis, Minnesota, United States Recruiting -
St. Dominic's Hospital ( Site 5004)
Jackson, Mississippi, United States Recruiting -
Washington University - School of Medicine ( Site 5006)
St Louis, Missouri, United States Recruiting -
The Center of Hope ( Site 5018)
Reno, Nevada, United States Recruiting -
Holy Name Medical Center ( Site 6011)
Teaneck, New Jersey, United States Recruiting -
University of New Mexico Comprehensive Cancer Center ( Site 6046)
Albuquerque, New Mexico, United States Recruiting -
Perlmutter Cancer Center at NYU Langone Hospital - Long Island ( Site 6055)
Mineola, New York, United States Recruiting -
Laura and Isaac Perlmutter Cancer Center at NYU Langone ( Site 6004)
New York, New York, United States Recruiting -
Memorial Sloan Kettering Cancer Center ( Site 6053)
New York, New York, United States Recruiting -
Duke Cancer Institute ( Site 6049)
Durham, North Carolina, United States Recruiting -
FirstHealth of the Carolinas ( Site 6037)
Pinehurst, North Carolina, United States Recruiting -
Miami Valley Hospital South ( Site 6014)
Centerville, Ohio, United States Recruiting -
University of Cincinnati Medical Center ( Site 5013)
Cincinnati, Ohio, United States Recruiting -
The James Cancer Hospital and Solove Research Institute at The Ohio State University Comprehensive C ( Site 6007)
Columbus, Ohio, United States Recruiting -
Kettering Health Main Campus-Kettering Health Cancer Center ( Site 5001)
Kettering, Ohio, United States Recruiting -
University of Oklahoma Health Sciences Center, Stephenson Cancer Center ( Site 6012)
Oklahoma City, Oklahoma, United States Recruiting -
Oklahoma Cancer Specialists and Research Institute, LLC ( Site 6047)
Tulsa, Oklahoma, United States Recruiting -
Oncology Associates of Oregon, P.C. ( Site 8005)
Eugene, Oregon, United States Recruiting -
St. Luke's University Health Network ( Site 6041)
Bethlehem, Pennsylvania, United States Recruiting -
Hospital of the University of Pennsylvania ( Site 5007)
Philadelphia, Pennsylvania, United States Recruiting -
AHN West Penn Hospital ( Site 6006)
Pittsburgh, Pennsylvania, United States Recruiting -
Women & Infants Hospital ( Site 5003)
Providence, Rhode Island, United States Recruiting -
Erlanger Medical Center ( Site 5009)
Chattanooga, Tennessee, United States Recruiting -
Texas Oncology - DFW ( Site 8004)
Fort Worth, Texas, United States Recruiting -
Houston Methodist Hospital ( Site 6057)
Houston, Texas, United States Recruiting -
Texas Oncology-San Antonio Medical Center ( Site 8001)
San Antonio, Texas, United States Recruiting -
Texas Oncology - Northeast Texas ( Site 8002)
Tyler, Texas, United States Recruiting -
Texas Oncology - Gulf Coast ( Site 8006)
Webster, Texas, United States Recruiting -
Inova Schar Cancer Institute ( Site 6003)
Fairfax, Virginia, United States Recruiting
+221 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Toll Free Number
- Email: Trialsites@msd.com
- Phone: 1-888-577-8839
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Sacituzumab Tirumotecan plus Pembrolizumab in advanced biliary tract cancer
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Sac-TMT and pembrolizumab with chemoradiation for bladder muscle invasion
This trial tests whether adding Sac-TMT and pembrolizumab to chemoradiation helps people with muscle-invasive bladder cancer live longer without the cancer growing or returning.
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This phase II study tests Sacituzumab tirumotecan alone or with pembrolizumab in adults whose ovarian clear cell cancer has recurred or spread after prior PD-1 therapy.
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PF-08634404 plus chemotherapy in adults with advanced or recurrent pMMR endometrial cancer
This study tests whether PF-08634404 added to standard chemotherapy helps adults with advanced or recurrent pMMR endometrial cancer more than pembrolizumab plus chemotherapy.
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EIK1005 (Werner helicase inhibitor) alone or with pembrolizumab for advanced MSI-H/dMMR and other solid tumors
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Sacituzumab tirumotecan plus pembrolizumab as first-line maintenance for metastatic cervical cancer
This trial tests whether adding the antibody-drug conjugate sacituzumab tirumotecan to pembrolizumab (with or without bevacizumab) as maintenance treatment can help people with metastatic cervical cancer live longer or keep the cancer from growing.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.